__builtin_isnormal question

[Andrew Haley]

On 06/04/2018 09:44 PM, Steve Ellcey wrote:
> 0.0 is a normal (as opposed to a denormalized) number isn't
> it?  Or is zero special?

In addition to the other answers, yes, zero is special.  Normal numbers
in IEEE-754 have an implicit leading 1 bit.  Zero is a case of a denormal
number.

-- 
Andrew Haley
Java Platform Lead Engineer
Red Hat UK Ltd. <https://www.redhat.com>
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